Dbaft-regtjlatob fob heatebs



w. A. SCIHLEIT.

DRAFT REGULATOR FOR HEATERS. APPLICATION FILED AuG.20, l9l5.

1 ,3 1 0,505 Patented July 22, 1919.

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W. A. SCHLEIT.

DRAFT REGULATOR FOR HEATERS. APPLICATION FILED AUG-20, 1915.

1 ,3 1 0,505 Patented July 22, 1919.

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1477' $553. I I I 1/ lvrol? W By .177'7'0 rim LY.

Tm: EoLuMmA I'LANOGRAPH c0., WASHINGTON. n. C.

TINTTET) sTaTns PATENT @FFTQE WILLIS A. SGHLEIT, 01E SYRACUSE, NEW YORK.

DRAF'T'QREGULATOR 'roa Hnnrnns.

Specification of Letters Patent.

PatentedJuly 22, 1919.

Application filed August 20, 1915. Serial No. 46,443. i

To all whom it may concern:

Be it known that I, WILLIs A. Sormnrr, a citizen of the United States ofAmerica, and resident of Syracuse, inthe county of Onondaga, in theState of New York, have 1nvented new and useful Improvements inDraft-Regulators for Heaters, of which the following, taken inconnection with the accompanying drawings, is a full, clear, and' eXactdescription.

This invention relates to certain improvements 'in'heating apparatus,and more particularly to draft regulators for heaters, such as hot waterheaters where it is desired to maintain a substantial uniformity oftemperature.

Hot water heaters constructed as herein set forth are particularlyadvantageous for use in connection with hot water heating systems forincubators'and the like, in which I the successful operation of theapparatus depends upon a close regulation of theheating The primaryobject,- therefore, ofthe in 'vention is to provide an improvedconstruction' of heater" operating upon improved unethods, in which thedraft is susceptible of exceedingly close and automatic regulation forsupplying heating fluid atsubstantially uniform temperature to a fluidheating systern.

Another object is to so construct the regulating parts that they may bereadily moved from operable position, without detachment,

to allow fuel to be supplied to the'heater.

7 Other objects and uses will appear from the: following descriptiontaken in connecj tion with the accompanying drawings, in

Fig. 2 is a side elevation partly of the same. c Fig. 3 is a crosssection on-line 35-3,F1g.1.

top "plan view of the heater. in section,

Figure 1 is a The heater as shown, comprises a combustion chamber 1surrounded by an upright boiler or water jacket '2 connected to a watercirculating system (not shown) by pipes 3 and 4. The jacket 2 1 isclosed at the top by a partition wall 5- having a central openlngforming a draft port 6 leading from the combustion chamber '-1- to asmoke chamber 7- formed'by a hollow top section 8 connected, in theconstruction showmby bolts i -9 to'the partition 5.

The section '8 is provided with a smoke outlet 10- and an opening -1l-'adapted to be closed by a suitable'lld 12- having, in this instance, aseries of check ports 13"" allowing communication between=the smokechamber 7 and the atmosphere. The lid is provided with a dependingcircumferential flange 14 bordering the outer edge of the check. ports13 andprojecting into the smoke chamber 8 and spaced a short distancefrom, andof substantially the same diameter as,

the upper edge of the combustion chamber '-20, and is movable betweenthe upper edge of the combustion chamber -1- and the lower edgeof theflange 14l for controlling not only the communication of the draft port6 with the smoke chamber -7 I and with the atmosphere through checkports 13, but also for controlling communication between the check portsand the smoke chamber -7-.

The jointed lever '18- is provided With a suitable adjustable weight 21-so reg- "ulated as to normally hold the valve -17 in contactlwith thelower edge of the flange -14- to shut ofl communication between thesmoke chamber 7 and the atmosphere through check ports 13.

The operation of lever 18 is controlled by any suitable thermostaticdevice, indicated at 22-, upon which the lever may be 'pivotally mountedand adapted to be actuated by a bearing 23 for rocking the lever aboutits pivot as the temperature of the waterin the pipe rises. As'thetemperatureof the water in the boiler 2 *and'pipe-krises, the bearing 23rocks the lever 18 about its pivot allow ing the valve 17 to movedownwardly -toward closed position with respect to the draft port 6, andat the same time allowing communication of the combustion chamber andthe smoke chamber through check ports 13. The temperature of the watermay rise to such a point that the valve 17- will move'downwardly to aPOlIlt sufficient to V entirely close the draft port 6-.

By this movement of the valve --17, controlling simultaneously theeffective communication of the draft port '6 and check ports -13, bothwith each other and with the smoke chamber ---10-, a very close 1l--anddraft port 6 without remov-' ing: or detaching any of the regulatingparts. For this purpose the lever comprises a pair of arms -2tand -25and a connecting member -26 having spaced flanges upon opposite edgesthereof, the arm -25- positioned between the spaced flanges upon thelower edge and connected thereto by screws 27, and the arm -24-positioned between the spaced flanges upon I the Opposite g d pivotallyconnected to one pair of said flanges, as by bolts 28.,xso that the arm-24 is free to I move, upwardly aboutitspivot with respect to ,arm .Q5-and connecting member 26 but is normally held in contact with saidmember by its own weight and by the weight of the lid 12- and valve -17supported thereby.

The arm -Q5 is pivotally mounted upon the lugs 29 projecting upwardlyfrom the housing of the thermostatic device -22*. a 7

Although I have shown and described one particular construction, formand arrangement of the parts, I do-not desire to limit myselfto thesame, as many changes may be made in the details of form, construction,arrangement and operation without departing from the spirit of thisinvention as set forth in the appended claims.

What I claim is V 1. In a heater, a combustion chamber, a

.smokechamb'er, a draft port constituting means of communication betweenthe smoke chamber and the combustion chamber and I having anupwardlyfacing valve seat,wthe.

smoke chamber provided with a fuel feed opening, a lid for the opening,said lid provided with a check port and formed with a tubular dependingflange having a downwardly facing valve seat, and a valve movablebetween said valve seats and controlling the draft and check ports.

1 2. In a heater, a combustion chamber, a

- smoke chamber, a draft port constituting means of communicationbetween the smok chamber and the combustion chamber and having anupwardly facing valve seat, the

smoke chamber provided with a fuel feed opening, a lid for the opening,said lid provided w th a check port and formed wlth a tubular dependmgflange hav ng a downivardly facing valve seat, a valve movable betweensaid valve seats and controlling th draft and check ports, andthermostatically controlled means for actuating the valve.

3. In a heater, a combustion chamber, a smoke chamber disposed above thecombustion chamber, a fuel feed draft port between the combustion Ichamber and the smoke chamber and formed with-an upwardly facing valveseat, a removable lid for the smoke chamber having an openingtherethrough and a depending tubular flange around the opening formingacheck port for the smoke chamber and having a downwardly facing valveseat, a valve movable between the draft port and the check port, andthermostatically controlled means for actuating the valve. V

, i. In a heater, a draft port, a lid having a substantially tubulardepending portion alined with the draft port and adapted to form a checkport, and a valve controlling both of said ports.

' 5. In a heater, a combustion chamber and a smoke chamber, a tubularextension projecting upwardly into the smoke chamber and forming a fuelfeed draft port between the smoke chamber and the combustion chamber,amovable lid for the smoke chamher having openings therethrough, and adepending substantially tubular flange around a the openings forming acheck port for the smoke chamber, and a valvemovable be-' tween thedraft port flangeand the check port flange and adapted to control bothports. I I T 6. In a heater, a combustion chamber and a smoke chamber, atubular extension projecting upwardly into the smoke chamber,

and forming a fuel feed draft port between the smoke chamber andcombustion chamher, a movable lid for the smoke chamber having openingstherethrough and a dependopenings forming a check ort for'the smokechamber, a valve movable between the'draft port flange and the 'checkport flange and adapted to control both'ports, and a rod carrying thevalve, the valve adapted to move thelid from seated position when therod is raised beyond a predetermined position; r a i 7. In a heater, acombustion chamber and a smoke chamber, a tubular extension projectinginto the smoke chamber and forming a fuel feed draft port with anupwardly facing valve seat, a removable lid forming a portion of thewall of the smoke chamber and having a tubular depending portion almedwithsaid tubular extensionandjform- 111g substantially tubular flangearound the ing a check port, and a valve movablebetween and controllingboth ports.

8 In a heater, a combustion chamber and a smoke chamber, a tubularextension projecting into the smoke chamber and forming a draft portwith an upwardly facing valve seat, a removable lid forming a portion ofthe wall of the smoke chamber and having a tubular depending portionalined with said tubular extension and forming a check port, and a valvemovable between and controlling both ports, said valve having an axiallyextending marginal flange within which said tubular depending portion isadapted to fit, said lid being movable from its position as a portion ofthe wall of said smoke chamber by movement of said valve beyond apredetermined point whereby the draftport may be exposed for theinsertion of fuel.

V 9. In a heater, a combustion chamber, a smoke chamber, a draft portconstituting means of communication between the com-' 7 bustion chamberand the smoke chamber and formed with an upwardly facing valve seat,said smoke chamber provided with a fuel feed check port and formed witha tubular depending flange about the port, aid flange having adownwardly facing valve seat and a valve movable between said valveseats and controlling the draft and check ports.

10. In a heater, a lever comprising two arms and a connecting memberrigidly secured to one of said arms and pivotally connected to the otherarm and having a seat for said last named arm in advance of said pivot,permitting breaking of the lever in one direction only and a valvesecured to said last named arm. 7

11'. In a heater, a lever comprising two arms and a connecting memberrigidly secured to one of, said arms and pivotally connected to theother arm and having a seat for said last named arm in advance of saidpivot, permitting breaking of the lever in one direction only and meansmounted on said connecting member for varying the angular disposition ofsaid arms and a valve connected to the arm pivoted to said connectingmember.

In witness whereof I have hereunto set my hand this 7th day of June,1915.

WILLIS A. SCHLEIT.

Witnesses:

M. VIOLA HowLANn, E. A. THOMPSON.

- Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. G.

